﻿using System.Collections.Generic;
using Centido.Core.Dto;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Centido.Core.Test
{
    /// <summary>
    ///   Testing the data transfer object for a reference target.
    /// </summary>
    [TestClass]
    public class RefTargetDtoTest : GenericDtoTest
    {
        /// <summary>
        ///   The current domain name.
        /// </summary>
        public const string DomainName = "FullAdminRights";

        /// <summary>
        ///   The current domain.
        /// </summary>
        private Domain _domain;

        /// <summary>
        ///   The table.
        /// </summary>
        private Table _table;

        /// <summary>
        ///   The another table.
        /// </summary>
        private Table _anotherTable;

        /// <summary>
        ///   The reference column.
        /// </summary>
        private RefColumn _refColumn;


        /// <summary>
        /// Test initialiaze
        /// </summary>
        [TestInitialize]
        public void Initialize()
        {
            _domain = Domain.Build(DomainConfiguration.Load(DomainName));

            _domain.DeleteAll();

            _table = _domain.AddTable(StringProperty.RandomIdentifier());
            _anotherTable = _domain.AddTable(StringProperty.RandomIdentifier());

            _refColumn = RefColumn.Add(_table, StringProperty.RandomIdentifier());
        }

        /// <summary>
        /// Test clean up
        /// </summary>
        [TestCleanup]
        public void CleanUp()
        {
            _domain.DeleteAll();
        }


        /// <summary>
        ///   Retrieves the name of the data transfer object xml tag.
        /// </summary>
        /// <returns></returns>
        protected override string GetXmlTag()
        {
            return RefTargetDto.XmlTag;
        }


        /// <summary>
        ///   Retrives the current xml schema version.
        /// </summary>
        /// <returns></returns>
        protected override string GetCurrentXmlSchemaVersion()
        {
            return RefTargetDto.CurrentXmlSchemaVersion;
        }


        /// <summary>
        ///   Creates a new data transfer object.
        /// </summary>
        /// <returns></returns>
        protected override DataTransferObject CreateDto()
        {
            return new RefTargetDto
            {
                RefTableName = StringProperty.RandomIdentifier(),
                HasCascadeDelete = true
            };
        }


        /// <summary>
        ///   Retrieves the list of data transfer object fields.
        /// </summary>
        /// <returns></returns>
        protected override IEnumerable<DtoFieldInfo> GetFields()
        {
            yield return new DtoFieldInfo
            {
                Name = "RefTableName",
                XmlName = RefTargetDto.RefTableNameAttribute,
                IsRequired = true,
                FieldType = DtoFieldType.String,
                SampleValue = StringProperty.RandomIdentifier(),
                HasTheSameNameAsCorrespondingObject = false,
                IsCopiedFromDto = false
            };
            yield return new DtoFieldInfo
            {
                Name = "HasCascadeDelete",
                XmlName = RefTargetDto.HasCascadeDeleteAttribute,
                IsRequired = false,
                FieldType = DtoFieldType.Boolean,
                SampleValue = true
            };
        }


        /// <summary>
        ///   Copies the properties of the data transfer object to the corresponding object.
        /// </summary>
        /// <param name="dto">The data transfer object.</param>
        /// <returns>Returns the corresponding object after copying.</returns>
        protected override object CopyFrom(DataTransferObject dto)
        {
            var refTarget = _refColumn.AddTarget(_anotherTable);

            ((RefTargetDto)dto).CopyTo(refTarget);

            return refTarget;
        }

        /// <summary>
        ///   Creates a data transfer object from the correpsonding object.
        /// </summary>
        /// <param name="dto">The created data transfer object.</param>
        /// <param name="initialObject">The initial object.</param>
        protected override void CreateDtoFromObject(out DataTransferObject dto, out object initialObject)
        {
            var refTarget = _refColumn.AddTarget(_anotherTable);

            dto = RefTargetDto.CreateFrom(refTarget);

            initialObject = refTarget;
        }
    }
}
